/* Componentes reutilizados entre seções. */

/* Ícones do sprite */
.icon { width: 1em; height: 1em; flex: none; fill: currentColor; }

/* ---------- Rótulo de seção: /01 · Nome · © ano ---------- */
.section-label {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: var(--s-16);
  padding-top: var(--s-16);
  margin-bottom: var(--s-64);
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.section-label::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: var(--border);
  background: var(--rule);
  transform-origin: left;
}
.section-label__num { display: inline-flex; align-items: center; gap: var(--s-8); font-variant-numeric: tabular-nums; }
.section-label__num .icon { width: 0.6rem; height: 1rem; }
.section-label__year { display: none; justify-self: end; color: var(--fg-muted); }
@media (min-width: 768px) {
  .section-label { grid-template-columns: 1fr auto 1fr; }
  .section-label__name { justify-self: center; }
  .section-label__year { display: block; }
}

/* ---------- Botões (§6) ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-12);
  min-height: 48px;
  padding: var(--s-16) 1.75rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: var(--fs-body);
  line-height: 1;
  letter-spacing: -0.01em;
  white-space: nowrap;
  isolation: isolate;
  overflow: hidden;
  transition: color var(--dur-hover) var(--ease);
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--dur-hover) var(--ease);
}
.btn .icon { width: 1.1em; height: 1.1em; }
.btn__arrow { transition: transform var(--dur-hover) var(--ease); }
.btn:hover .btn__arrow,
.btn:focus-visible .btn__arrow { transform: translateX(4px); }

.btn--primary { background: var(--accent); color: var(--black); }
.btn--primary::before { background: var(--black); }
.btn--primary:hover::before { opacity: 0.12; }

.btn--secondary { color: var(--fg); box-shadow: inset 0 0 0 var(--border) currentColor; }
.btn--secondary::before { background: var(--fg); }
.btn--secondary:hover { color: var(--bg); }
.btn--secondary:hover::before { opacity: 1; }
.btn--secondary .icon--wa { color: var(--whatsapp); }

.btn--sm { min-height: 44px; padding: var(--s-12) var(--s-24); font-size: var(--fs-small); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--s-12); }
@media (max-width: 767px) {
  .btn-row--stack { flex-direction: column; }
  .btn-row--stack .btn { width: 100%; }
}

/* Link-CTA: sublinhado de largura fixa + seta */
.link-cta {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-16);
  min-width: 10rem;
  min-height: 44px;
  padding-block: var(--s-8);
  border-bottom: var(--border) solid currentColor;
  font-weight: 500;
}
.link-cta .icon { width: 0.9em; height: 0.9em; }
/* Troca de setas no hover (padrão da ValFX): a atual sai pela direita, a cópia entra pela esquerda.
   O JS envolve a seta em .link-cta__arrow e duplica o ícone. */
.link-cta__arrow { display: inline-grid; overflow: hidden; flex: none; }
.link-cta__arrow > .icon { grid-area: 1 / 1; transition: transform 450ms var(--ease-ui); }
.link-cta__arrow > .icon + .icon { transform: translateX(-130%); }
.link-cta:hover .link-cta__arrow > .icon:first-child,
.link-cta:focus-visible .link-cta__arrow > .icon:first-child { transform: translateX(130%); }
.link-cta:hover .link-cta__arrow > .icon + .icon,
.link-cta:focus-visible .link-cta__arrow > .icon + .icon { transform: none; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-h);
  background: var(--black);
  border-bottom: var(--border) solid var(--gray-800);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-16);
  height: 100%;
}
.site-header__logo { display: inline-flex; align-items: center; min-height: 44px; min-width: 44px; }
.site-header__logo svg { height: 26px; width: auto; color: var(--white); }

.site-nav { display: none; }
.site-nav ul { display: flex; gap: var(--s-32); }
.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: flex-start;
  gap: 2px;
  min-height: 44px;
  align-content: center;
  padding-top: var(--s-12);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--white);
}
.site-nav sup { font-size: 0.625rem; color: var(--gray-600); font-variant-numeric: tabular-nums; }
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 8px;
  height: var(--border);
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-hover) var(--ease);
}
.site-nav a:hover::after,
.site-nav a[aria-current="true"]::after { transform: scaleX(1); }

.site-header__actions { display: flex; align-items: center; gap: var(--s-12); }

.lang-switch {
  display: none;
  align-items: center;
  font-size: var(--fs-micro);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.lang-switch button {
  min-width: 44px;
  min-height: 44px;
  color: var(--gray-600);
  transition: color var(--dur-hover) var(--ease);
}
.lang-switch button[aria-pressed="true"] { color: var(--white); }
.lang-switch button:hover { color: var(--white); }
.lang-switch span { color: var(--gray-800); }

.menu-toggle {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--white);
}
.menu-toggle__bars { position: relative; width: 22px; height: 12px; }
.menu-toggle__bars::before,
.menu-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur-hover) var(--ease);
}
.menu-toggle__bars::before { top: 0; }
.menu-toggle__bars::after { bottom: 0; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before { transform: translateY(5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::after { transform: translateY(-5px) rotate(-45deg); }

@media (max-width: 479px) {
  .site-header .btn--header { display: none; }
}
@media (min-width: 1024px) {
  .site-nav,
  .lang-switch { display: flex; }
  .menu-toggle { display: none; }
}

/* Menu mobile em tela cheia */
.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 0;
  z-index: 49;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--s-32);
  padding: var(--s-32) var(--gutter) var(--s-48);
  background: var(--black);
  color: var(--white);
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--dur-hover) var(--ease), transform var(--dur-hover) var(--ease);
}
.mobile-menu.is-open { opacity: 1; transform: none; }
.mobile-menu ul { display: grid; }
.mobile-menu li { border-bottom: var(--border) solid var(--gray-800); }
.mobile-menu li a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-block: var(--s-16);
  font-size: var(--fs-h2);
  font-weight: 500;
  letter-spacing: -0.03em;
}
.mobile-menu li a span { font-size: var(--fs-micro); color: var(--gray-600); font-variant-numeric: tabular-nums; }
.mobile-menu .lang-switch { display: flex; }
.mobile-menu__footer { display: grid; gap: var(--s-24); }
@media (min-width: 1024px) { .mobile-menu { display: none; } }

/* ---------- Marquee (só texto e losangos) ---------- */
.marquee {
  overflow: hidden;
  padding-block: var(--s-24);
  border-block: var(--border) solid var(--rule);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 36s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__group {
  display: flex;
  align-items: center;
  gap: var(--s-32);
  padding-right: var(--s-32);
  font-size: var(--fs-h2);
}
.marquee__group .icon { width: 0.5em; height: 0.8em; color: var(--fg-muted); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Card de arte 9:16 (§7, §9) ---------- */
.art-card { margin: 0; }
.art-card__media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--surface);
  cursor: zoom-in;
}
.art-card--4x3 .art-card__media { aspect-ratio: 3 / 4; }
.art-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--dur-art-hover) var(--ease);
}
.art-card__media:hover img,
.art-card__media:focus-visible img { transform: scale(1.06); }
.art-card__caption {
  display: grid;
  grid-template-columns: 2.25rem 1fr auto;
  gap: var(--s-8);
  padding-top: var(--s-12);
  font-size: var(--fs-small);
  line-height: 1.35;
}
.art-card__index { color: var(--fg-muted); font-variant-numeric: tabular-nums; }
.art-card__title { font-weight: 500; }
.art-card__type { color: var(--fg-muted); text-align: right; }

/* Carrossel com snap (mobile) */
.snap-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 80%;
  gap: var(--s-16);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--gutter);
  padding-inline: var(--gutter);
  margin-inline: calc(var(--gutter) * -1);
  padding-bottom: var(--s-8);
  scrollbar-width: thin;
}
.snap-row > * { scroll-snap-align: start; }

/* ---------- Card de vídeo ---------- */
.video-card { margin: 0; }
.video-card__frame {
  position: relative;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--gray-800);
}
.video-card__frame video,
.video-card__frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.video-card__controls {
  position: absolute;
  inset: auto 0 0;
  display: flex;
  justify-content: flex-end;
  gap: var(--s-8);
  padding: var(--s-48) var(--s-12) var(--s-12);
  background: linear-gradient(to top, rgb(13 13 13 / 0.6), rgb(13 13 13 / 0));
}
.video-card__btn {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  color: var(--white);
  background: rgb(13 13 13 / 0.6);
  box-shadow: inset 0 0 0 var(--border) var(--white);
  transition: transform var(--dur-hover) var(--ease);
  --focus: var(--accent);
}
.video-card__btn:hover { transform: scale(1.06); }
.video-card__btn .icon { width: 18px; height: 18px; }
.video-card__btn .icon--off { display: none; }
.video-card__btn[data-state="alt"] .icon--on { display: none; }
.video-card__btn[data-state="alt"] .icon--off { display: block; }

/* ---------- Acordeão (FAQ) ---------- */
.accordion { border-top: var(--border) solid var(--rule); }
.accordion__item { border-bottom: var(--border) solid var(--rule); }
.accordion__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-24);
  min-height: 64px;
  padding-block: var(--s-16);
  text-align: left;
  font-size: var(--fs-body-lg);
  font-weight: 500;
}
.accordion__icon {
  position: relative;
  width: 16px;
  height: 16px;
  flex: none;
  transition: transform var(--dur-hover) var(--ease);
}
.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.accordion__icon::before { left: 0; right: 0; top: 7px; height: 2px; }
.accordion__icon::after { top: 0; bottom: 0; left: 7px; width: 2px; }
.accordion__trigger[aria-expanded="true"] .accordion__icon { transform: rotate(45deg); }
.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-enter) var(--ease);
}
.accordion__panel > div { overflow: hidden; }
.accordion__panel p { padding-bottom: var(--s-24); max-width: var(--measure); color: var(--fg-muted); }
.accordion__item.is-open .accordion__panel { grid-template-rows: 1fr; }

/* ---------- Lightbox (dialog nativo) ---------- */
.lightbox {
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgb(13 13 13 / 0.96);
  color: var(--white);
  --focus: var(--accent);
}
.lightbox::backdrop { background: transparent; }
.lightbox[open] { display: grid; grid-template-rows: auto 1fr auto; animation: fade-in var(--dur-hover) var(--ease); }
.lightbox__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-16);
  padding: var(--s-12) var(--gutter);
  font-size: var(--fs-small);
}
.lightbox__stage {
  display: grid;
  place-items: center;
  min-height: 0;
  padding: 0 var(--gutter);
}
.lightbox__stage img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: contain;
}
.lightbox__nav {
  display: flex;
  justify-content: center;
  gap: var(--s-12);
  padding: var(--s-16) var(--gutter) var(--s-24);
}
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-pill);
  box-shadow: inset 0 0 0 var(--border) currentColor;
  transition: transform var(--dur-hover) var(--ease);
}
.icon-btn:hover { transform: scale(1.06); }
.icon-btn .icon { width: 18px; height: 18px; }
.icon-btn--flip .icon { transform: scaleX(-1); }

@keyframes fade-in { from { opacity: 0; } }

/* ---------- Botão flutuante do WhatsApp (mobile) ---------- */
.wa-float {
  position: fixed;
  right: var(--s-16);
  bottom: var(--s-16);
  z-index: 40;
  display: inline-grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-pill);
  background: var(--black);
  color: var(--whatsapp);
  box-shadow: inset 0 0 0 var(--border) var(--gray-800);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity var(--dur-hover) var(--ease), transform var(--dur-hover) var(--ease);
  --focus: var(--accent);
}
.wa-float .icon { width: 26px; height: 26px; }
.wa-float.is-visible { opacity: 1; transform: none; pointer-events: auto; }
@media (min-width: 768px) { .wa-float { display: none; } }

/* ---------- Animações de entrada e saída ligadas ao scroll (§10) ----------
   O JS (setupScrub) grava --p (0 → 1) em cada elemento conforme ele atravessa a parte de baixo da tela.
   Tudo é calculado a partir de --p, sem transições CSS: ao subir, o movimento volta pela mesma trajetória,
   e inverter no meio continua da posição atual. Sem JS, --p vale 1 (tudo visível).
   --q = progresso com escalonamento (--i), --e = mesmo progresso com desaceleração (ease-out). */
.js [data-reveal] {
  --q: clamp(0, (var(--p, 1) - var(--i, 0) * 0.07) / 0.72, 1);
  --e: calc(1 - (1 - var(--q)) * (1 - var(--q)));
  opacity: var(--q);
  transform: translate3d(0, calc((1 - var(--e)) * var(--enter-y)), 0);
}

/* Artes e vídeos: sobem mais e crescem levemente até a escala 1 */
.js .art-card[data-reveal],
.js .video-card[data-reveal] {
  transform: translate3d(0, calc((1 - var(--e)) * var(--s-64)), 0) scale(calc(0.94 + 0.06 * var(--e)));
}

/* Fotos do Davy: sem fade; a moldura sobe e a foto faz zoom-out de 1,15 para 1 */
.js .about__photo[data-reveal],
.js .course__photo[data-reveal] {
  opacity: 1;
  transform: translate3d(0, calc((1 - var(--e)) * var(--s-48)), 0);
}
.js .about__photo[data-reveal] img,
.js .course__photo[data-reveal] img { transform: scale(calc(1 + 0.15 * (1 - var(--e)))); }

/* Rótulos de seção: a régua se desenha (e "desdesenha" ao subir), os textos aparecem depois */
.js .section-label[data-reveal] { opacity: 1; transform: none; }
.js .section-label[data-reveal]::before { transform: scaleX(var(--e)); }
.js .section-label[data-reveal] > * { opacity: clamp(0, (var(--p, 1) - 0.3) / 0.7, 1); }

/* Títulos revelados por máscara: cada palavra sobe de baixo para cima dentro de um recorte (ValFX: +70 a +140 px). */
.split-word {
  display: inline-block;
  overflow: clip;
  vertical-align: top;
  /* folga para acentos e descendentes não serem cortados pela máscara */
  padding-block: 0.1em 0.14em;
  margin-block: -0.1em -0.14em;
}
.split-word__inner { display: inline-block; }
/* Cada palavra (--w de --n) ocupa metade do percurso, em sequência: ao descer sobem da primeira para a última,
   ao subir descem de volta pela máscara da última para a primeira. */
.js [data-split] .split-word {
  --q: clamp(0, (var(--p, 1) - var(--w, 0) / max(var(--n, 1), 1) * 0.5) / 0.5, 1);
}
.js [data-split] .split-word__inner {
  transform: translate3d(0, calc((1 - var(--q)) * (1 - var(--q)) * 115%), 0);
}

/* Logo grande do rodapé sobe (e desce) pela máscara conforme a rolagem */
[data-mask] { overflow: clip; }
.js [data-mask] > svg { transform: translate3d(0, calc((1 - var(--p, 1)) * (1 - var(--p, 1)) * 105%), 0); }

/* Entrada do header ao carregar (ValFX: itens descem 10 px, 0,5 s, 100 ms entre eles) */
@keyframes header-drop { from { opacity: 0.001; transform: translateY(-10px); } }
.site-header__logo,
.site-nav li,
.site-header .lang-switch,
.site-header .btn--header,
.menu-toggle { animation: header-drop 500ms var(--ease-ui) both; }
.site-header__logo { animation-delay: 300ms; }
.site-nav li:nth-child(1) { animation-delay: 400ms; }
.site-nav li:nth-child(2) { animation-delay: 500ms; }
.site-nav li:nth-child(3) { animation-delay: 600ms; }
.site-nav li:nth-child(4) { animation-delay: 700ms; }
.site-header .lang-switch { animation-delay: 800ms; }
.site-header .btn--header { animation-delay: 900ms; }
.menu-toggle { animation-delay: 400ms; }

/* As animações rodam sempre, mesmo com "reduzir movimento" no sistema, como na ValFX (decisão do Davy, 2026-10-20). */